nginx: add netns

- Adds nginx to netns-isolation.services
- Adds host option (defaults to localhost) as target of hidden service

modules/netns-isolation.nix

@@ -124,6 +124,10 @@ in {
           # communicates with clightning over lightning-rpc socket
           connections = [];
         };
+        nginx = {
+          id = 21;
+          connections = [];
+        };
       };
 
       systemd.services = {
@@ -286,6 +290,9 @@ in {
         host = netns.nanopos.address;
       };
 
+      # nginx: Custom netns configs
+      services.nix-bitcoin-webindex.host = mkIf config.services.nix-bitcoin-webindex.enable netns.nginx.address;
+
     })
     # Custom netns config option values if netns-isolation not enabled
     (mkIf (!cfg.enable) {